Improvement in ox-yokes



W. PERKINS.

0X YOKES.

Patented Oct. 31. 1876.

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UNITED STATES PATENT OFFICE.

WILLIAM PERKINS, OF PLYMPTON, MASSACHUSETTS.

IMPROVEMENT IN OX-YOKES.

Specification forming part of Letters Patent No. 183,816. dated October31, 1876 application filed November 23, 1875.

To all whom it may concern Be it known that I, WILLIAM PERKINS, ofPlympton, in the county of Plymouth and State of Massachusetts, haveinvented certain new and useful Improvements in Ox-Yokes; and I dohereby declare that the following specification contains a full andexact description of the same, reference being had to the accompanyingdrawing, which forms a part of this specification, in which said drawinglike letters indicate similar parts of the implement herein described.

The object of my invention is to secure the strength of the beam andbows of the yoke, and effect an even draft by causing an easy horizontaland reciprocal movement of the bows within the beam of the yoke; andsaid invention consists in certain improvements in the construction ofox-yokes, as hereinafter more fully shown and described.

In the drawing referred to as forming a part of this specification,Figure 1 is a top view of my improved yoke. Fig. 2 is a front View, apart being removed. Fig. 3 is a plan view of the under side. Fig. 4 is across section through beam and sliding neck piece de scribed herein.Fig. 5 shows a guide (marked h) detached.

In the said drawing, A designates the beam of the yoke, made in twoparts, secured by bolts a, a space being left between said parts, withinwhich the bows B are placed, as shown. C indicates the draft-ring, heldby the bolt 0 at the center of the beam. A lever, D, is pivoted at thecenter of the beam and on the under side thereof, two rods, (1,connecting with the extremities of said lever, as plainly shown in Fig.3. E is a sliding neck-piece, one being provided for each bow, andplaced Within the beam, as shown, and said neck-piece has a slot, e,through which one of the bolts to passes. F indicates two metallicneck-plates, which are secured by bolts s to the sliding neck-pieces andon the under sides thereof. As shown in Fig. 3, these neck-plates areconnected with lever D by means of the rods d.

Each of the bows B is provided with two devices or attachments, b,firmly fixed thereto, as shown in Fig. 2, an eye, f, being formed at thetop of the device b, and the flanges g at the bottom. A guide-bar, h, isprovided for each of the bows B, and is placed on the top of the beam A,the extremities of said bar turning rectangularly, and passing throughthe eyes fin the devices I), as shown in Fig. 1. Thus, the devices bserve to hold the bar h on the top of the beam, and the flanges 9 formguides along the under side of the beam. (See Fig. 3) The said bar hworks through a guide, 70, the latter being secured by the same bolt (1which passes through the slot 0 in the sliding neck-piece E.

Figs. 4. and 5 illustrate the guide h, which has a slot or elongatedaperture, :0, through which the bolt a passes, the upper end of saidguide forming a hook, the point of which rests in an incision, n, inbeam A. The slot or allows the guide 70 to be pulled up, so as to removethe bar h when such is desired.

By this construction and combination of parts an easy reciprocatingmovement of the bows B is caused, the sliding neck-pieces E, with theplates F secured thereto, moving between the two sections of the beam Ain a horizontal plane, being held by the devices b, and guided by theguide It and flanges g.

Having described my invention, I claim and desire to secure by LettersPatent- 1. In combination with bow B of a yoke, the holding and guidingdevices I), the guidebar h, and guide h, as and for the purposesdescribed.

2. In the yoke, the bows B, provided with the devices I), as shown, theguide-bar h, and guide h, in combination with sliding neckpieces E,provided with the plates F, lever D, and connecting-rods d, as and forthe purposes set forth.

WILLIAM PERKINS. Witnesses:

WILLIAM L. BONNEY, LAURA W. BONNEY.

